Some I've noticed:
- V0 – hanging by one's arms; shifting weight for balance; pushing with one's legs
- V1 – pinching, edging
- V2 – laybacking, pockets, backstepping, flagging
- V3 – 'more strength'?
'More strength' is what it feels like you're missing when you can't do a problem – better technique is unimaginable. It's also obviously needed too.
What other techniques should I be practicing, and looking for opportunities to use – and at what grades?
Here's the top Google search result for me just now for "climbing grades chart" so feel free to use any grade scale:
Yes, this question is similar to this existing question:
This question is, in a sense, the 'inverse' of that other question. But I'm not a route setter, nor am I devising my own pitches or problems. I want to know a rough ordering of techniques and their at-least-approximate association with various grades. I understand that there aren't hard-and-fast rules and that there are lots of reasons why this is.
But I've already supplied several examples of techniques that, in my experience at least, seem to only be necessary at certain grades. I'm sure there are more. What are they?
I also understand that, in fact, basically any technique may be required at fairly low grades, i.e. V3-V4.
But some techniques, e.g. bicycling; or certain types of problems, e.g. roofs, overhangs of greater than 30 degrees; just don't seem to reasonably be expected at lower grade problems. I dispute, for instance, that a problem with a 60 degree overhang, for more than one or two moves, could reasonably be graded a V1. That absolutely contradicts my (limited) experience and I can't imagine that anyone would expect climbers at a V1 grade level to be able to climb such features consistently.